Falling after Butorphanol in cats

The FDA has received 22 reports of falling in cats after Butorphanol. That is 1.0% of all reports for this medicine, compared with 0.5% across reports for all cat medicines, so it is reported unusually often with this medicine.

22Reports

77%Marked serious

23%Recovered

23%Died or euthanised

1 daysTypical onset

How soon it started

Same day

9 43%

1–2 days

8 38%

3–7 days

1 4.8%

1–4 weeks

3 14%

Over a month

0 0.0%

How the animals did

Recovered

4 18%

Recovered with lasting effects

1 4.5%

Still unwell when reported

8 36%

Died

1 4.5%

Euthanised

4 18%

Not known

4 18%

Problems reported at the same time

10 45%

9 41%

8 36%

7 32%

6 27%

Eye or vision problems

5 23%

Death

5 23%

Breathing problems

4 18%

Age of the animals

Under 1 year

1–3 years

4–7 years

8–11 years

12+ years

About this medicine

Type: medicine.

Questions owners ask

Can Butorphanol cause falling in cats?: 22 reports link the two, but a report alone does not prove the medicine was the cause: other illnesses, other medicines or coincidence can be involved. Your vet can judge it for your animal.
How soon after a dose was it reported?: In half of the reports with dates, it started within 1 day of the first dose.
What should I do?: Don't give another dose until you've spoken to your vet, and keep the packaging so you can tell them the product and dose. Your vet can also report it to the FDA (or you can, through the manufacturer or FDA form 1932a).

Falling with similar medicines

Falling after Isoflurane 31 reports · 1.5% of its reports
Falling after Propofol 22 reports · 1.9% of its reports
Falling after Florfenicol + Mometasone + Terbinafine 84 reports · 12% of its reports
Falling after Betamethasone + Florfenicol + Terbinafine 21 reports · 8.1% of its reports

All reported side effects of Butorphanol in cats · Medicines most reported with falling